I like that kbin/lemmy we can choose whatever fucking avatar we want instead of being limited to customizing our snoz or wtf Reddit calls their mascot thing.

You can still do that on new reddit. When looking at your own profile while logged in, there's a little camera with a plus in the corner of your current avatar/placeholder. (There's also a separate icon further to the right for uploading a banner image.)

Edit: Dang, I didn't expect that image to look so big, it's only 600x300